Home / 657,105.20-907,215.68-503,848.97

Finding the Fourth Proportional to 657,105.20, 907,215.68 and 503,848.97

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Solution

The fourth proportional to 657,105.20, 907,215.68 and 503,848.97 is: 695,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,105.20 : 907,215.68 = 503,848.97 : x
  2. Step 2: Convert to fraction form
    657,105.20/907,215.68 = 503,848.97/x
  3. Step 3: Cross multiply
    657,105.20x = 907,215.68 × 503,848.97
  4. Step 4: Simplify right side
    657,105.20x = 457,099,685,935.85
  5. Step 5: Solve for x
    x = 457,099,685,935.85/657,105.20
  6. Step 6: Final answer
    x = 695,626.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.